An educational intervention to reduce the use of potentially inappropriate medications among older adults (EMPOWER study): protocol for a cluster randomized trial

Table 1 Overview of data collection and measurements in both trial arms

	Baseline	Follow-up post-intervention
Visit number	T0	T1	T2	T3	T4
Time	1-7 months pre-intervention	7 days	6 weeks	6 months	1 year
Inclusion and exclusion criteria	X
Socio-demographic characteristics	X
SMAF questionnaire	X
GHS questionnaire	X
MoCA	X
Rey 15-Item Memory Test	X
GAI	X		X	X	X
Depression PHQ-9	X^a		X	X	X
Insomnia questionnaire	X^a		X	X	X
Medication use characteristics	X
Benzodiazepine tapering questionnaire		X	X	X	X
Medication knowledge questionnaire	X	X
BMQ-Specific	X	X
Self-efficacy scale	X	X
Intervention related questionnaire		X	X	X
Intervention appreciation questionnaire				X

^aOnly administered if related outcome present. BMQ-Specific, Beliefs about Medicines Questionnaire - Specific segment; GAI, Geriatric Anxiety Inventory; GHS, general health status; MoCA, Montreal Cognitive Assessment; PHQ, Patient Health Questionnaire; SMAF, functional autonomy measurement system.

ISSN: 1745-6215